4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

David A. Stafford

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Apparatus for anaerobic digestion of organic waste

Liquid purification or separation – With heater or heat exchanger – Vapor or gas removal
Patent

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Apparatuses for the anaerobic digestion of natural organic waste

Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Test valve
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Business card dispenser

Travel goods and personal belongings – Umbrella or parasol – walking support – Cane or walking support
Patent

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Injection systems for sample testing for luminometers

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Chemiluminescent
Patent

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Luminometer construction

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Patent

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Profile ID: LFUS-PAI-P-564807

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